Monitoring system for telecommunication links equipped with repeaters-regenerators
CA 1136729 A · Owner: Societe Anonyme De Telecommunications · Inventors: Le Fort, Gilbert J.; Walraet, Jean G.; Boutmy, Patrick E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Monitoring system for a forward and backward link equipped with two way repeaters-regenerators comprising a monitoring station and in said monitoring station means for sending through the forward link information data and a low frequency control signal and for receiving through said backward link information data and supervisory words respectively monitoring the performance of the repeaters-regenerators and identifying errors made therein. In each repeater regenerator a supervisory word is stored in a shift register and advance pulses for said shift resister are obtained by frequency division of the low frequency control signal. The supervisory word is completed by a start bit and a stop …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.